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Finding the Fourth Proportional to 612,604.48, 845,270.24 and 357,906.40

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Solution

The fourth proportional to 612,604.48, 845,270.24 and 357,906.40 is: 493,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,604.48 : 845,270.24 = 357,906.40 : x
  2. Step 2: Convert to fraction form
    612,604.48/845,270.24 = 357,906.40/x
  3. Step 3: Cross multiply
    612,604.48x = 845,270.24 × 357,906.40
  4. Step 4: Simplify right side
    612,604.48x = 302,527,628,625.54
  5. Step 5: Solve for x
    x = 302,527,628,625.54/612,604.48
  6. Step 6: Final answer
    x = 493,838.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.